Stainless steel case with stainless steel bracelet, fixed bezel. Features a silver cutaway dial equipped with luminous silver-tone hands and index hour markers. Includes minute markers and tachymeter markings around the outer rim for speed measurement. Analog dial type with luminescent hands and markers ensuring excellent legibility in low light conditions. Equipped with a chronograph function featuring two sub-dials: one displaying 12-hour elapsed time, another showing 30-minute elapsed time, along with small seconds sub-dial typically found on El Primero models. Powered by the Zenith Calibre El Primero 4061 automatic movement (derived from the classic Calibre El Primero 400), this high-precision mechanism contains 31 jewels and is composed of 282 parts, beating at 36,000 vph for superior accuracy. Offers a power reserve of approximately 50 hours. Protected by a scratch-resistant sapphire crystal lens. Winding via pusher crown with screw-down bezel enhancing water resistance (up to 100 meters / 330 feet). Functions include chronograph, hour, minute, and small second timekeeping. Round case shape measures 43 mm in diameter and 14.05 mm thick. Band width is 22 mm fitted with a fold-over clasp featuring push button release for easy adjustment and secure fastening. Dress watch style from the Chronomaster El Primero Series, Swiss Made label indicating origin.